Oxidation rate of elemental sulfur particles with a wide range of sizes

Soil Research ◽  
1993 ◽  
Vol 31 (1) ◽  
pp. 67
Author(s):  
JH Watkinson
Keyword(s):  
Rate Constant ◽  
Oxidation Rate ◽  
Total Mass ◽  
Elemental Sulfur ◽  
Sieve Analysis ◽  
Oxidation Rate Constant ◽  
Sieve Fraction ◽  
Wide Range ◽  
The Mean ◽  
Lower Size

An equation is proposed that describes the oxidation rate of elemental sulfur particles with a wide range of sizes, such as would be found in fertilizers. The only information needed is the mean oxidation rate constant over the period of interest and, from a sieve analysis, the proportions of the total mass in each sieve fraction (ratio of upper to lower size < to 2).

Corrigenda - Oxidation rate of elemental sulfur particles with a wide range of sizes

Soil Research ◽  
1993 ◽  
Vol 31 (1) ◽  
pp. 67
Author(s):  
JH Watkinson
Keyword(s):  
Rate Constant ◽  
Oxidation Rate ◽  
Total Mass ◽  
Elemental Sulfur ◽  
Sieve Analysis ◽  
Oxidation Rate Constant ◽  
Sieve Fraction ◽  
Wide Range ◽  
The Mean ◽  
Lower Size

An equation is proposed that describes the oxidation rate of elemental sulfur particles with a wide range of sizes, such as would be found in fertilizers. The only information needed is the mean oxidation rate constant over the period of interest and, from a sieve analysis, the proportions of the total mass in each sieve fraction (ratio of upper to lower size < to 2).

Dissolution rate of phosphate rock particles having a wide range of sizes

Soil Research ◽  
1994 ◽  
Vol 32 (5) ◽  
pp. 1009 ◽  
Author(s):  
JH Watkinson
Keyword(s):  
Dissolution Rate ◽  
Rate Constant ◽  
Phosphate Rock ◽  
Direct Application ◽  
Sieve Analysis ◽  
Wide Range ◽  
The Mean ◽  
Dissolution Rate Constant

An equation is proposed that describes the dissolution rate in soil of phosphate rock particles with a wide range of sizes, such as found in fertilizers for direct application. Information needed is the mean dissolution rate constant for the soil, and the dry sieve analysis of the phosphate rock.

Correction

Soil Research ◽  
1993 ◽  
Vol 31 (3) ◽  
pp. 391
Author(s):  
JH Watkinson
Keyword(s):  
Oxidation Rate ◽  
Elemental Sulfur ◽  
Wide Range

Oxidation Rate of Elemental Sulfur Particles With a Wide-Range of Sizes (Vol 31, Pg 68, 1993)

scholarly journals The conformation-independent QSPR approach for predicting the oxidation rate constant of water micropollutants

2017 ◽  
Vol 24 (35) ◽  
pp. 27366-27375 ◽  
Author(s):  
Erlinda V. Ortiz ◽  
Daniel O. Bennardi ◽  
Daniel E. Bacelo ◽  
Silvina E. Fioressi ◽  
Pablo R. Duchowicz
Keyword(s):  
Rate Constant ◽  
Oxidation Rate ◽  
Oxidation Rate Constant

The effect of binding ions on the oxidation of horse heart ferrocytochrome c

1979 ◽  
Vol 57 (5) ◽  
pp. 372-377 ◽  
Author(s):  
B. F. Peterman ◽  
R. A. Morton
Keyword(s):  
Ionic Strength ◽  
Rate Constant ◽  
Binding Sites ◽  
Oxidation Rate ◽  
Specific Binding ◽  
Electron Transfer Reaction ◽  
Oxidation Rate Constant ◽  
Binding Model ◽  
Ferrocytochrome C ◽  
Cacodylate Buffer

The effect of various specific binding ions on the rate of oxidation by potassium ferricyanide of electrodialyzed horse heart ferroeytochrome c was studied. The ionic strength was kept constant using Tris–cacodylate buffer, pH 7.0. Either the Tris or cacodylate ion was replaced by the binding ion studied. At an ionic strength of 0.194 M (24 °C), replacing cacodylate by chloride decreased the bimolecular oxidation rate constant from about 13.3 × 106 (Tris–cacodylate) to about 8.8 × 106 M−1 s−1 (Tris–chloride). Comparable decreases were found when cacodylate was replaced by phosphate or when Tris was replaced by potassium. When picrate replaced cacodylate (ionic strength 0.0485 M) a larger decrease was found, from about 5.2 × 107 to about 0.8 × 107 M−1 s−1. Data at intermediate ion concentrations were consistent with a simple cooperative binding model. The calculated association constants for chloride, potassium, and phosphate were in the range of 2–20 M−1, while for picrate it was 500 M−1. The data were consistent with one bound ion per ferroeytochrome c molecule, except for picrate, for which two binding sites were suggested. The results were interpreted by the hypothesis that the picrate ion binds near the solvent-exposed heme edge. The electron transfer reaction of ferricyanide was also presumed to take place through this region. The other ions probably bind at some distance from the heme edge and were suggested to exert their effect by perturbing the proteins' solvent shell. Consistent with this was the effect of replacing H2O by D2O which decreased the oxidation rate constant by about 50%.

A Comparison of Physiological Demand between Self-Propelled and Motorized Treadmill Exercise

2018 ◽  
Vol 7 (4) ◽  
pp. 13-21
Author(s):  
Todd Backes ◽  
Charlene Takacs
Keyword(s):  
Respiratory Exchange Ratio ◽  
Treadmill Exercise ◽  
Cardiopulmonary Exercise Testing ◽  
Mean Value ◽  
The Self ◽  
Mixing Chamber ◽  
Wide Range ◽  
The Subject ◽  
The Mean ◽  
Computer Controlled

There are a wide range of options for individuals to choose from in order to engage in aerobic exercise; from outdoor running to computer controlled and self-propelled treadmills. Recently, self-propelled treadmills have increased in popularity and provide an alternative to a motorized treadmill. Twenty subjects (10 men, 10 women) ranging in age from 19-23 with a mean of 20.4 ± 0.8 SD were participants in this study. The subjects visited the laboratory on three occasions. The purpose of the first visit was to familiarize the subject with the self-propelled treadmill (Woodway Curve 3.0). The second visit, subjects were instructed to run on the self-propelled treadmill for 3km at a self-determined pace. Speed data were collected directly from the self-propelled treadmill. The third visit used speed data collected during the self-propelled treadmill run to create an identically paced 3km run for the subjects to perform on a motorized treadmill (COSMED T150). During both the second and third visit, oxygen consumption (VO2) and respiratory exchange ratio (R) data were collected with COSMED’s Quark cardiopulmonary exercise testing (CPET) metabolic mixing chamber system. The VO2 mean value for the self-propelled treadmill (44.90 ± 1.65 SE ml/kg/min) was significantly greater than the motorized treadmill (34.38 ± 1.39 SE ml/kg/min). The mean R value for the self-propelled treadmill (0.91 ± 0.01 SE) was significantly greater than the motorized treadmill (0.86 ± 0.01 SE). Our study demonstrated that a 3km run on a self-propelled treadmill does elicit a greater physiological response than a 3km run at on a standard motorized treadmill. Self-propelled treadmills provide a mode of exercise that offers increased training loads and should be considered as an alternative to motorized treadmills.

The way of value of Correlation of genomic DNA microsatellite loci and live weight of Chukchi reindeer

2020 ◽  
pp. 27-32
Author(s):  
V. Dodokhov ◽  
N. Pavlova ◽  
T. Rumyantseva ◽  
L. Kalashnikova
Keyword(s):  
Microsatellite Markers ◽  
Agricultural Production ◽  
Live Weight ◽  
Biodiversity Loss ◽  
Tribal Community ◽  
High Germination ◽  
Wide Range ◽  
The Mean ◽  
High Level ◽  
Dna Microsatellite

The article presents the genetic characteristic of the Chukchi reindeer breed. The object of the study was of the Chukchi reindeer. In recent years, the number of reindeer of the Chukchi breed has declined sharply. Reduced reindeer numbers could lead to biodiversity loss. The Chukchi breed of deer has good meat qualities, has high germination viability and is adapted in adverse tundra conditions of Yakutia. Herding of the Chukchi breed of deer in Yakutia are engaged only in the Nizhnekolymsky district. There are four generic communities and the largest of which is the agricultural production cooperative of nomadic tribal community «Turvaurgin», which was chosen to assess the genetic processes of breed using microsatellite markers: Rt6, BMS1788, Rt 30, Rt1, Rt9, FCB193, Rt7, BMS745, C 143, Rt24, OheQ, C217, C32, NVHRT16, T40, C276. It was found that microsatellite markers have a wide range of alleles and generally have a high informative value for identifying of genetic differences between animals and groups of animal. The number of identified alleles is one of the indicators of the genetic diversity of the population. The total number of detected alleles was 127. The Chukchi breed of deer is characterized by a high level of heterozygosity, and the random crossing system prevails over inbreeding in the population. On average, there were 7.9 alleles (Na) per locus, and the mean number of effective alleles (Ne) was 4.1. The index of fixation averaged 0.001. The polymorphism index (PIC) ranged from 0.217 to 0.946, with an average of 0.695.

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